I live in Germany so this is probably the problem. Edit: To Clarify: Matching just works in the UK? Google Music is working fine here in Germany (it just don't seem to match)
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silent_cookieNov 17 '12 at 15:31

That's what The Verge says. I live in the U.S. so I can't confirm anything. I expect it'll get rectified within a few weeks.
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Al E.Nov 18 '12 at 2:25